#encoding:utf-8
#!/user/bin/python

username = input('请输入您的账号：')
password = input('请输入你的密码：')

if username == '' or password == '':
    print('账号或者密码不可为空！')
elif username == '123' and password == 'abc':
    print('登录成功！')
else:
    print('登录失败！')  
    